--- a/src/LogicProg.v Sat Aug 15 15:54:11 2015 -0400+++ b/src/LogicProg.v Sat Aug 15 15:59:02 2015 -0400@@ -777,7 +777,7 @@ Hint Resolve plus_0 times_1.-(** We finish with one more arithmetic lemma that is particularly specialized to this theorem. This fact happens to follow by the axioms of the _ring_ algebraic structure, so, since the naturals form a semiring, we can use the built-in tactic %\index{tactics!ring}%[ring]. *)+(** We finish with one more arithmetic lemma that is particularly specialized to this theorem. This fact happens to follow by the axioms of the _semiring_ algebraic structure, so, since the naturals form a semiring, we can use the built-in tactic %\index{tactics!ring}%[ring]. *) Require Import Arith Ring.